Airloc A-Spec Cross Pins

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Part# 04-01071
MFR Model# 99785-2


Airloc A-Spec Cross Pins
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I have been working for 3 years on restoring a 75 year old Canadian Army Wireless set that made use of the Airloc #5 Wing Head Cowl Fastener and the smaller Shakeproof #2 Wing Head Fasteners. I needed pins for both but could find nothing about them anywhere based on their wartime military nomenclature. By accident recently, I spotted a photo on line of one of the pins, in which is was referred to as a Cross-Pin. That photo led me to your website. On contacting your company, Carolyn was of tremendous assistance explains how the sizing system for these Cowl Fasteners worked and I was able to purchase the smaller #2 pins for the Shakeproof Fasteners on my wireless set. Now, I just need to find a source of supply today for the actual Wing Head style #2 and #5 Cowl Fastener Studs. It seems the slotted countersunk and slotted truss-head Cowl Fastener Studs are still available, but the Wing Head style studs are still proving elusive. I have passed along your company information to a number of other individuals looking for these Cross-Pins. Small orders, but it does spread the word. Thank you and best regards. David. Winnipeg, Canada

David D
November 4, 2020

Received on time and worked as advertised.

James F
March 17, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the difference between a -2 and a -5 A-Spec crosspin?

The number pin works with that numbered stud. 2 series studs use -2 pins, and 5 series studs use -5 pins. Approx. Dims: -2 pins = .313" long, .063" diameter. -5 pins = .449" long, .095" diameter.

Q: Can you use this pin on a 98293-1-100 Airloc oval stud?

Yes, that is correct.

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